swOperation/node_modules/@antv/g2/esm/transform/utils/lttb.d.ts

/**
 * Sample data with lttb(Largest-Triangle-Three-Buckets) algo (https://github.com/pingec/downsample-lttb).
 * Return the sampled index array.
 */
export declare function lttb(I: number[], X: number[], Y: number[], thresholds: number): number[];